Cell C failing to get back to me on data package problems

Oh boy - so I have to go to Hello Peter again to get reaction. With my last upgrade, I needed more data than the package I was interested in provided. Cell C then offered me another contract (with another sim card) that will have the 5GB data package loaded for like R100 a month. I have since had trouble accessing the data on a regular basis. After some calls and technical assistance I was told that Cell C had problems with that specific network,and the lady suggested that I cancel the data contract. I told her that I would still try it for a month or so to see if it improves. It did not. I now want to cancel the data contract, but nobody is getting back to me. Cell C, please contact me so we can discuss this and get it sorted. Thanx